studte



2 SheetsS11eet 1.

(No Model.)

H. STUDTE.

ELECTRIC CONNECTOR.

No. 431,412. Patented July 1, 1890.

THE NORRIS PETERS c0 wuomumoi, WA-SHWGTON, n c.

(No Model.) I 2 SheetsSheet '2.

V H. STUDTE.

ELECTRIC GQNNECTOR.

No. 431,412. Patented July 1, 1890.

UNITED STATES PATENT OFFICE.

HERMANN STUDTE, OF DOM KRUK, NEAR INOVVRAOLAW, PRUSSIA, GERMANY.

ELECTRIC CONNECTOR.

SPECIFICATION forming part of Letters Patent No.- 431,412, dated July 1,1890.

Application filed November 29 1889. Serial No. 332,065. (No model.)

To all whom it may concern.-

Be it known that I, 'HERMANN STUDTE,S'EL1- dent, of Dom Kruk, nearInowraclaw, in the Kingdom of Prussia and German Empire, have invented anew and useful Concealed Electrical Contact, of which the following is aspecification, reference being had therein to the accompanying drawings.

This invention relates to a conductor-contact for house-telegraphs andother electric conductors, by means of which dining and work tables andthe like can be placed in connection with the house telegraph conductoror other electric apparatus in an easy and convenient manner.

This invention possesses the advantages that it is not in the way, doesnot project from the floor or the table, and always insures a goodelectric contact.

The invention is'shown in the accompanying drawings, and is hereinafterdescribed with reference thereto.

Figures 1 to 4 show a contact appliance according to my presentinventionfor one conductor-wire. Fig. 1 shows the new contact appliance appliedto a table. Fig. 2 gives a view of the bottom of the contact from above;a

i Fig. 3, a longitudinal section along the line 00 as, Fig. 2, of thebottom. Fig. 4' shows a longi tudinal section through the top of thecontact. Figs. 5 to 7 show a contact appliance which forms the contactof both conducting-wires with the table. Fig. 5 is a view from above;Fig. 6, a longitudinal section along the line 3 y, Fig. 5; and Fig, 7,the upper part thereof in longitudinal section.

The conductor-contact for one wire, according to Figs. 1 to 4, isarranged as follows: In a brass or other suitable metal cap or capsuleb, which is connected with a conducting-wire Z, a cap h, resting on aspring f,is inserted in such a way that it' can be pressed entirely intothe cap or capsule Z). To the top of the cap it a bell g is fitted asthe closing-piece and is connected with the conducting-wire Z. Two ofthese capsules 1) are screwed into the floor of the room and connectedwith. the conductor Z, lying under the boards. In each of two feet of atable, 850., one closing-bell g is screwed, Fig. 4, and then the tableis placed with these feet upon the contact caps or capsules I), let intothe floor. (See Fig. l.) The caps 72. lay themselves inside theclosing-bells g, and thus conduct the electrical current to thepress-knob or to the lamp, 850., along the wire at the foot or carriedup through the foot.

Figs. 5 to 7 show a cond noting-contact for the two wires. In the cap orcapsule b, Fig. 6, an insulating-cylinder is placed, into the interiorof which the cap 71., resting on a sprin g f, is pushed. Around theinsulating-cylinder z', of ebonite or other suitable material, a brassring 1' is placed, which rests on the spring f. One of theconducting-wires Z leads the currentinto the bottom plate of theinsulating-cylinder through the spring f into the cap 72, while theother conducting-wire Z leads the current through the metal screw intothe spring f, and through the latter into the ring 1'. The closing-piece in the foot of the table, Fig.7, consists of the bell which isconnected with the wire Z and the also inserted concave ring 19, whichis in connection with the wire Z.

The conducting-wires are either carried up in grooves or perforations inthe legs of the table or as desired.

That I claim, and desire to secure by Letters Patent of the UnitedStates, is-

In combination with a spring-mounted contact-cap, a spring-mounted ringsurrounding the said cap, and a corresponding cap and ring adapted tocover the first cap and ring,

substantially as described.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

